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Articles

A Study of Colored Stone and Diamond Cutting Angles

From Faceting Limits

The pavilion and bezel slopes commonly recommended for faceting are the result of trial-and-error and human judgment. This explains why references differ in their recommendations.

Trial-and-error is an effective way to solve complex problems until a better way comes along, but it usually finds only the best solution in the range of experimentation. Other good solutions may exist – beyond the bad ones – but are found only by accident. This has been as true in faceting as in many other scientific fields.

Making the Grade - GIA Cut Grading

Has the GIA’s cut grading system for round brilliant diamonds made lower cut grades redundant?

China on the Rise: Exploding Economy with a Fantastic Future (Part Two)

In the second installment of his two-part feature, John Pollard moves away from China’s tremendous retail potential and examines the country’s diamond grading industry.

Gemstone Cutting - Step by Step

I am often asked by clients, friends and family about how gemstones are faceted. I designed this photo pictorial to illustrate to the steps of the gemstone cutting process. The gemstone I selected for this first pictorial was a 13.3ct piece of rhodolite garnet from Africa. Due to the shape of the rough, I chose an oval design for the finished gemstone. The pictures below show the gem progress from a piece of rough to a finished gemstone. Each photograph is described in depth to highlight what is occurring during the gemstone cutting process.

China on the Rise: Exploding Economy with a Fantastic Future (Part One)

Mainland China’s incredible growth and potential is a melodious counterpoint to the songs of worldwide woe in our industry, as John Pollard discusses in the first of a two-part report.